CHAPTER 18 ELECTRICAL SPECIFICATIONS
764
User’s Manual U14492EJ3V0UD
Notes 1.
Be sure not to exceed the absolute maximum ratings (MAX. value) of each power supply voltage.
2.
CLK_DBG, SYNC, AD0_DBG to AD3_DBG pins (
µ
PD70F3116 only)
3.
Make sure that the following conditions of the V
PP
voltage application timing are satisfied when the
flash memory is written.
•
When power supply voltage rises
V
PP
must exceed V
DD3
and V
DD5
10
µ
s or more after V
DD3
and V
DD5
have reached the lower-limit
value (V
DD3
: 3.0 V, V
DD5
: 4.5 V) of the operating voltage range (see a in the figure below).
•
When power supply voltage drops
V
DD3
and V
DD5
must be lowered 10
µ
s or more after V
PP
falls below the lower-limit value (V
DD3
: 3.0 V,
V
DD5
: 4.5 V) of the operating voltage range of V
DD3
and V
DD5
(see b in the figure below).
0 V
0 V
4.5 V
4.5 V
V
PP
V
DD3
V
DD5
V
PP
0 V
3.0 V
3.0 V
a
a
b
b
Cautions 1.
Do not directly connect output (or I/O) pins of IC products to each other, or to V
DD
, V
CC
, and
GND. Open drain pins or open collector pins, however, can be directly connected to each
other. Direct connection of the output pins between an IC product and an external circuit is
possible, if the output pins can be set to the high-impedance state and the output timing of
the external circuit is designed to avoid output conflict.
2.
Product quality may suffer if the absolute maximum rating is exceeded even momentarily for
any parameter. That is, the absolute maximum ratings are rated values at which the product
is on the verge of suffering physical damage, and therefore the product must be used under
conditions that ensure that the absolute maximum ratings are not exceeded.
The ratings and conditions shown below for DC characteristics and AC characteristics are
within the range for normal operation and quality assurance.
Содержание V850E/IA1 mPD703116
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